IB Chemistry HL 3.4.1 Nucleophiles Questions

Use real HL exam questions to identify nucleophiles as Lewis bases, compare their reactivity and show the electron pair that forms a new bond.

Exam points

Identify an electron-rich nucleophile by its available lone pair or negative charge and distinguish it from an electrophile.
Show or explain the nucleophile donating an electron pair to an electron-deficient atom to form a new bond.
Classify a nucleophile as a Lewis base and compare nucleophilicity when solvent or hydroxide/water conditions change.

[Maximum number: 2]

Some reactions of but-2-ene are given below.

Explain why the hydroxide ion is a better nucleophile than water.

$\mathrm{OH}^{-}$ has a negative charge/higher electron density;
stronger attraction to the carbon atom with the partial positive charge / OWTTE;

All question bank results loaded